Incandescent-lamp lock and seal.



H. DAVIES & J. 000KB. INGANDESGENT LAMP LOOK AND SEAL.

APPLICATION FILED NOV. 20, 1912.

ill

ill in 1 lI-lUIFJ DAVIES 12 2 33) JAMES COOKE, 03 WEST NEW XGRK, NEW JERSEY.

INCANDESCENT-LAMP LOCK- AN'D. SEAL.

Application ill-es isovember 20, 1:293:52.

To aZZ whom it may concern Be it known that W,- HUGH DAVIES and Jen ins iloonn, citizen-s oi the United States, and residents of \Vest New York, county of Hudson, and State of New Jersey, have invented certain new and useful Improve- Denis in incandescentLamp Locks and Seals. of which the following is a specifieshy electricity and in limildings similarly lighted 00noss results from the theltl: o

{ lie l .5: ineaiideseenl lmnp bulbs and particularly oi that class of bulbs lined with tungsten and like expensive filaments. in hotels it frequently occurs that the guests remove the lamp bol from the sockets and connect chafing: dishes and other electric cooking: utensils and electrically heated'irons to the light eireuit. This frequently results in over-loading; the circuit and the consequent burning out of the fuses. Where the fuses are not (lesi'royed there is an excessive con sumption "oi" on rent which is direct loss to the hotel.

. is the nniin object of this invention to .e an incandescent lamp socket "which serve as a means for locking the Limp in *"(rh manner that it cannot be re Llii'lblll. i shine; the seal and Another object of the invention is to proexpansiole lamp socket shell which ended to receive the threaded lamp hull; and then ci'intreoted bull). in see? and. previ-mt until the locnnx; means is o peeinit t socket shell hieots and odvanta s will appear herein. figure 1 is an QlEVE'l-IOR lie-t contracted ulh in the seal I View 0.

e ovation o' 6 1d View thereoi. Unions ports no the lamp socket soell :ill fzoni end to lily izponoed Referring to the morals, l designates is split long Specification of Letters Patent.

Patented Air ng. 1%, 1%53.

Serial No. 732,432.

able points along the marginal edges of the split portion of the shell are formed outwsrdly extending ears orlegs s said legs being perforated for the reception of o rivet The marginal edges of the split portion of the shell are over-lapped, as shown at 6, so that there will he no open space between such edges. The shell is provided with the usual cap '2' which may he secured thereto in any suitable manner and, of course, Within the shell Will be placed the-usual threaded socket and terminals. As these may he of any suitable oonstrnctionthey are not shown in the drawing In operation the shell is firstexpended sufficie-ntly to permit the threaded plug on the end of the lamp bulb to be screvled into the usual threaded socket contained in the shell. The shell is then conti'scted to bring the annular locking flange 3 around ihewhsse of the threaded plu The lugs sre then riveted or oiherwise permanently connected together to hold the shell in its contracted condition. These logs may be bent close to the side of the shell, as shown in Fig. l, or they may he pemnitted to project outwardly therefrom shown in the other figures.

The cap 7 holds the upper of the split vent look and seal be broken or removed.

What we claim is:

1. .An incandescent l eoninivisii expensihie 4 means 1e leinpmeoei fofl to lock t-h 4 2. incandescent lei" former; with on inserts;

e means i? holding whereby locking ll (J. eompeising shell formed with an inwardly extending shell and adapted to be riveted together to locking flange at its lamp-receiving end, and contract the shell.

removable means for rigidly holding the In testimony whereof we hereunto aflix socket shell against expansion. our signatures in the presence of two Wit.- 5 4. An incanlieseent lamp lock and seal nesses this 16th dayof November 1912.

comprising a longitudinally split socket HUGH DAVIES. shell, an inwardly extending locking flange JAMES COOKE. at the lamp-receiving end thereof,. out- "Witnesses: Wardly extending lugs formed along the LILLIAN MCGUIRE, 10 edges. of the longitudinal division in the F. R. MILLER.

Qopies oi 2, e @etexii may he obtained for five cents each, by'addressing the Comniissioner of Patents,

Washington, C. 

